30results about How to "With denitrification function" patented technology

The invention discloses a high-pressure electrostatic dust collection electric field device of a coal-fired unit for generating ozone and simultaneously desulfurizing and denitrating. The device comprises an electrostatic dust collection channel which is formed by sequentially connecting a plurality of electric fields, a neutralizing tower, a water mist spray system, a water supply device, a power control system, a spray control system and an intelligent closed-loop control system, wherein the flashover frequency of the power control system is set to be 150-10000 times / minute, the water mist spray system is arranged in the neutralizing tower, the intelligent closed-loop control system is utilized to control the power control system and the spray control system is utilized to automatically coordinated with each other, so that the high-pressure electrostatic dust collection device can be added with a denitrating function on the basis of maintaining the original electrostatic dust collecting and desulfurizing functions, and nearly no investment is required for obtaining the denitrating function. On the basis of reasonably utilizing the original equipment, the environmental protection emission requirements are satisfied, and the device has the advantages of low cost, high operation effect and obvious integral economic benefit.

The invention discloses an effluent disposing method through fluid bed and making method of biological affinity fill, which comprises the following steps: filling biological affinity fill in the fluid bed; making predisposed effluent into anaerobic pulse fluid bed and aerobic circulating fluid bed to do biochemical disposal; separating water from mud through two sediment pond or gas floating technique; sterilizing; discharging sludge into sludge condensing pond or refluxing sludge to anaerobic pond and aerobic pond. The biological affinity fill is composed of polyurethane, rare earth and ferric oxide.

The invention relates to an activated sludge process and biofilm process combined wastewater treatment device. The device comprises a treatment tank, a partition plate is fixed in the treatment tank,a wastewater inlet pipe is connected to a water distribution cavity, and a gap is formed between a lower end of the partition plate and a bottom wall of the treatment tank. A microporous aerator is arranged at a bottom of the reaction cavity, the microporous aerator is connected with an aeration pipeline, a filler frame is arranged in the reaction cavity, a combined filler is suspended on the filler frame, a sedimentation tank is attached to one side of the treatment tank, an upper end of the reaction cavity is level with an upper end of the sedimentation tank to form an overflow port, an upper part of the sedimentation tank is provided with a water outlet, the water outlet is lower than the overflow port, a bottom of the sedimentation tank is provided with a sludge return pipeline, the sludge return pipeline is provided with a sludge pump and a return switch, and a bottom of the treatment tank is provided with a sludge outlet. The device is simple in structure and small in occupied area, the concentration of activated sludge can reach 5-6 g / l, the removal rate of COD, BOD and ammonia nitrogen is up to 90% or above, the total nitrogen removal efficiency is 60% or above, and the operation cost is low.

The invention relates to a method and device for municipal sewage treatment enhancement operation with intermittent aeration of a biochemical tank belonging to the technical field of water treatment. The device is constituted by a grid, a sand setting tank, a primary settling tank, a three-zone tank, a secondary settling tank, and a contact tank. The three-zone tank comprises an anaerobic zone, an anoxic zone, an aerobic zone, a sludge return pipe, an aerator pipe, a nitrification liquor return pipe, and a return pump. A control valve is mounted on a riser of the aerator pipe at the rear end of the aerobic zone. A sludge return pump is also mounted at the tail end of the aerobic zone. An inlet of the sludge return pump is connected to a perforated sludge collecting pipe which is mounted at the bottom of the rear end of the aerobic zone, and an outlet of the sludge return pump is connected to an inner return pipe. The other end of the inner return pipe is connected to the nitrification liquor return pipe. When a sewage treatment plant operates under high load, the control valve is closed to stop aeration, and the sludge return pump is started to allow both sludge at the bottom of the settling zone and nitrification liquor to return to the anoxic zone. According to the invention, the municipal sewage is treated by increasing the sludge concentrations of the anoxic zone and the aerobic zone, thereby increasing the biomass of the biochemical tank and reducing the operation energy consumption.

The invention provides an aerobic microbial electrochemical biological turntable sewage treatment method. The method is to use the aerobic microbial film and the anaerobic electricity-producing microbial film to grow together on a three-dimensional carrier with oxygen reduction catalytic performance to form a composite biofilm. A biological turntable is made; wherein, the anaerobic electrogenic microbial film grows on the inner layer close to the carrier, while the aerobic microbial film grows on the outer layer, wrapping and protecting the anaerobic electrogenic microbial film. It utilizes the aerobic respiration of the aerobic microbial membrane, the electrocatalytic oxidation and electrocatalytic reduction of anaerobic electricity-producing microorganisms, and the electrocatalytic oxygen reduction of the carrier itself to remove various pollutants in water at the same time. It has the advantages of (a) low material and operating costs; (b) simple process and small footprint; (c) high decontamination efficiency, multi-functionality and (d) can be integrated with traditional aerobic biological treatment systems, etc. .

The invention discloses a method of advanced oxidation for NO in flue gas and a device thereof. The flue gas after dust collection enters a vapor phase advanced oxidation device, and the method sequentially comprises the following steps of flue gas preconditioning and vapor phase advanced oxidation. The device comprises a flue gas preconditioning segment and a vapor phase advanced oxidation segment, wherein the flue gas preconditioning segment is provided with a process water spray device; and the vapor phase advanced oxidation segment is provided with a ferrous salt spray device and a hydrogen peroxide spray device. The oxidation device for NO is arranged in front of the original wet desulphurization device (or the oxidation device is directly transformed in a flue), so that the originaldesulphurization device has denitration function, and the method has the advantages of convenient transformation, less floor area and low investment and operating costs; the NO oxidation efficiency is more than 85%, the desulphurization efficiency is more than or equal to 96% after washing by a desulphurization tower, the denitration efficiency is more than or equal to 75%, and the method has a certain mercury removal efficiency.

The invention discloses an aerobic denitrifying bacteria and application thereof. The preservation number of Pseudomonas JM22B6 of the present invention is: GDMCC No: 61212. According to comprehensive analysis of morphology, physiology and biochemistry, 16SrRNA sequence and genome sequence, the strain of the present invention is a new species of Pseudomonas. This strain is a new type of aerobic denitrifying bacteria, which can efficiently remove nitrate nitrogen, nitrite nitrogen and ammonium nitrogen in water, that is, after 12 hours of cultivation, the removal efficiency of nitrite nitrogen and ammonium nitrogen Both were 100%; the removal rate of nitrate nitrogen was 100% after culturing for 24 hours. In addition, the strain 22B6 has a good denitrification effect in the range of nitrite nitrogen concentration from 14 to 280 mg / L. Therefore, Pseudomonas JM22B6 has important application potential in the denitrification treatment of wastewater polluted by nitrogen such as nitrate nitrogen, nitrite nitrogen and ammonium nitrogen, especially wastewater polluted by various concentrations of nitrite nitrogen.

The invention discloses a multi-cycle self-backflow small living sewage treatment system with a denitrification function. The system is composed of a water yield adjusting area, a biochemical treatment area and a settling area. A lifting pump is arranged in the water yield adjusting area to lift sewage to be treated to one end of the biochemical treatment area. An aerating apparatus and biochemical reaction filler are installed in the biochemical treatment area. A backflow device is arranged on the pond wall between the other end of the biochemical treatment area and the water yield adjusting area, and after the backflow device is started, sewage subjected to a biochemical reaction can flow back into the water yield adjusting area. An effluent weir is arranged on the pond wall between the other end of the biochemical treatment area and the settling area. A sufficient circular reaction of sewage can be achieved due to the design of the height difference of the bottom of the crest of the effluent weir and the bottom of the crest of a backflow weir, the pollution load impact is the smallest, and the sewage treatment efficiency is highest. The system is applicable to small-yield sewage treatment, and particularly suitable for non-uniform inflowing sewage treatment conditions with the denitrification requirement. Impact of the instantaneous water inflowing pollution load on the system is small, the ammonium-nitrogen removal rate is high, and the sewage treatment efficiency is high.

The invention discloses a denitrification bacterium and application thereof. Pseudomonas sp. JM10A2a, the deposit number is: GDMCC No.61214. The results of the denitrification characteristics of Pseudomonas JM10A2A show that the strain is a heterotrophic nitrifying-aerobic denitrifying strain, which can efficiently remove nitrate nitrogen and ammonium nitrogen in water, and can be used at low C / N The removal of nitrite nitrogen can still be carried out efficiently under the conditions, which shows that the Pseudomonas JM10A2a of the present invention has great application potential in denitrification of water bodies.

The invention provides a method for regenerating dedusting and denitrifying a multifunctional catalytic filter material. The method concretely comprises the following steps: (1) preparing a cleaning solution; (2) producing a regenerated catalyic filter membrane from polytetrafluoroethylene powder, catalyst powder, a pore forming agent, a coupling agent and a lubricant; (3) purging a poisoned or deactivated dusting and denitrifying multifunctional filter material, and washing the filter material with the prepared cleaning solution, and pretreating the filter material base cloth with a treatmentagent; and (4) performing hot press compounding on the prepared regenerated catalytic filter membrane and the pretreated filter base cloth by a hot press roller, and cooling the obtained material toobtain a regenerated dedusting and denitrifying multifunctional filter material. The method allows the regeneration of the dedusting and denitrifying multifunctional filter material to be fast completed by using an existing filter material preparation device only through matching with a simply used device, and makes the regenerated multifunctional filter material environmentally friendly and highly efficient (the denitrifying activity is more than 90%). The method has great significance to realize the industrialization and the promotion application of flue gas simultaneous dedusting and denitrifying filter bags.

This case involves a black and odorous river water purification ship, including a hull, the hull includes a water inlet pipe, a rotating biological treatment unit and an outlet pipe; the inlet of the water inlet pipe is provided with a pump; the rotating biological treatment unit is connected to a gear transmission device; the rotating biological treatment unit includes three bioreactors, respectively the first reactor, the second reactor and the third reactor; each bioreactor includes a biological rotor and an oxidation tank; the biological The rotor is located in the oxidation tank; a plurality of biological impellers are arranged inside the biological rotor; a plurality of spiral biological blades are arranged on each biological impeller; thin biological strips are attached to each biological blade. The black and odorous river water purification ship of the present invention has the advantages of high treatment efficiency, stable water discharge, low operating cost, small maintenance workload, acid and alkali resistance, corrosion resistance, anti-aging, low standby operation noise, convenient transportation, and low transportation and installation costs. .

The invention discloses a high-pressure electrostatic dust collection electric field device of a coal-fired unit for generating ozone and simultaneously desulfurizing and denitrating. The device comprises an electrostatic dust collection channel which is formed by sequentially connecting a plurality of electric fields, a neutralizing tower, a water mist spray system, a water supply device, a power control system, a spray control system and an intelligent closed-loop control system, wherein the flashover frequency of the power control system is set to be 150-10000 times / minute, the water mist spray system is arranged in the neutralizing tower, the intelligent closed-loop control system is utilized to control the power control system and the spray control system is utilized to automatically coordinated with each other, so that the high-pressure electrostatic dust collection device can be added with a denitrating function on the basis of maintaining the original electrostatic dust collecting and desulfurizing functions, and nearly no investment is required for obtaining the denitrating function. On the basis of reasonably utilizing the original equipment, the environmental protection emission requirements are satisfied, and the device has the advantages of low cost, high operation effect and obvious integral economic benefit.

The invention discloses a Bacillus hominis with denitrification function and its application. Marivirgasp. S33H4, the deposit number is GDMCCNo:61709. The Bacillus inhabitants S33H4 of the present invention can effectively remove nitrate nitrogen, ammonium nitrogen and nitrite nitrogen in water bodies, wherein the removal effects of nitrate nitrogen and ammonium nitrogen are all above 90%, In addition, the strain also has a significant removal effect on nitrite nitrogen. This shows that Bacillus coccidioides S33H4 has good application potential in water denitrification.

The invention relates to a sewage total-nitrogen processing apparatus and a method thereof, which belongs to the field of sewage processing. The sewage total-nitrogen processing apparatus comprises a first biochemical reaction tank, a first settling tank, a second biochemical reaction tank, a second settling tank, a sludge carbon source converter and a matched sludge backflow control system, several individual valve-controlled aeration apparatus, a filling material, a diversion trench and an air liquid level raiser are respectively arranged in the first biochemical reaction tank and the second biochemical reaction tank, a water inlet end of the diversion trench is positioned by corresponding a water outlet of the air liquid level raiser, and the backflow of outlet sewage / sludge mixed liquor is realized. The sewage total-nitrogen processing apparatus can enhance the total nitrogen removal effect of the biochemical reaction tank, and has COD removal effect, high-efficiency removal of COD, ammonia nitrogen and total nitrogen can be realized in one reaction tank, and the sewage total-nitrogen processing apparatus has the characteristics that the oxygen demand is little, power required by mixed liquor backflow is little, the removal efficiency is high, a structure is little by comparing with an A / O technology, water quality fluctuation is adapted, and the sludge output is little.

The invention discloses a multi-cycle self-backflow small living sewage treatment system with a denitrification function. The system is composed of a water yield adjusting area, a biochemical treatment area and a settling area. A lifting pump is arranged in the water yield adjusting area to lift sewage to be treated to one end of the biochemical treatment area. An aerating apparatus and biochemical reaction filler are installed in the biochemical treatment area. A backflow device is arranged on the pond wall between the other end of the biochemical treatment area and the water yield adjusting area, and after the backflow device is started, sewage subjected to a biochemical reaction can flow back into the water yield adjusting area. An effluent weir is arranged on the pond wall between the other end of the biochemical treatment area and the settling area. A sufficient circular reaction of sewage can be achieved due to the design of the height difference of the bottom of the crest of the effluent weir and the bottom of the crest of a backflow weir, the pollution load impact is the smallest, and the sewage treatment efficiency is highest. The system is applicable to small-yield sewage treatment, and particularly suitable for non-uniform inflowing sewage treatment conditions with the denitrification requirement. Impact of the instantaneous water inflowing pollution load on the system is small, the ammonium-nitrogen removal rate is high, and the sewage treatment efficiency is high.

The invention relates to the technical field of sewage treatment and provides a microbial electrochemical biological turntable for sewage treatment. It includes a three-dimensional carrier, a rotating shaft and a power device; the three-dimensional carrier is arranged on the rotating shaft, and the rotating shaft is connected to the power device; it is characterized in that: anaerobic electricity-generating microbial film and aerobic microbial film are attached to the three-dimensional carrier, wherein the anaerobic electricity-generating The microbial film grows on the inner layer close to the carrier, while the aerobic microbial film grows on the outer layer to wrap and protect the anaerobic electricity-producing microbial film; the three-dimensional carrier is partly immersed in sewage and partly exposed to the air. The electrons inside the biological turntable can be self-transferred, and can synergistically remove electron donors and electron acceptors in water. The electron donors include organic matter and ammonium nitrogen, and the electron acceptors include nitrate nitrogen, nitrite nitrogen, sulfate and heavy metal ions.